EP 4022914 A1 20220706 - METHOD AND APPARATUS FOR ADAPTIVE LOOP FILTERING AT PICTURE AND SUB-PICTURE BOUNDARY IN VIDEO CODING
Title (en)
METHOD AND APPARATUS FOR ADAPTIVE LOOP FILTERING AT PICTURE AND SUB-PICTURE BOUNDARY IN VIDEO CODING
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ADAPTIVEN SCHLEIFENFILTERUNG AN DER BILD- UND UNTERBILDGRENZE IN DER VIDEOCODIERUNG
Title (fr)
PROCÉDÉ ET APPAREIL DE FILTRAGE À BOUCLE ADAPTATIVE AU NIVEAU D'UNE LIMITE D'IMAGE ET DE SOUS-IMAGE DANS UN CODAGE VIDÉO
Publication
Application
Priority
- US 201962896032 P 20190905
- US 201962896631 P 20190906
- US 201962903043 P 20190920
- US 2020049015 W 20200902
Abstract (en)
[origin: WO2021046096A1] Methods and apparatus for video coding using Adaptive Loop Filter (ALF) processing are disclosed. According to one method, the ALF virtual boundary processing is always applied to the bottom CTU row regardless whether the bottom CTU row is for a picture or a sub-picture. In another method, the ALF padding process is unified for different boundary types belonging to the target boundary belongs to a boundary-type group comprising two or more of slice boundary, tile boundary, VR360 face boundary, and sub-picture boundary. In yet another method, the ALF VB processing has a fixed priority for a corner region that both horizontal and vertical virtual boundaries can be applied.
IPC 8 full level
H04N 19/20 (2014.01)
CPC (source: EP KR US)
H04N 19/117 (2014.11 - EP KR US); H04N 19/172 (2014.11 - EP); H04N 19/174 (2014.11 - EP KR); H04N 19/176 (2014.11 - KR); H04N 19/182 (2014.11 - US); H04N 19/70 (2014.11 - EP KR); H04N 19/82 (2014.11 - EP KR US); H04N 19/86 (2014.11 - KR); H04N 19/96 (2014.11 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2021046096 A1 20210311; CN 114731419 A 20220708; EP 4022914 A1 20220706; EP 4022914 A4 20230906; KR 20220051403 A 20220426; MX 2022002542 A 20220518; TW 202116073 A 20210416; TW I769516 B 20220701; US 2022303587 A1 20220922
DOCDB simple family (application)
US 2020049015 W 20200902; CN 202080062450 A 20200902; EP 20861494 A 20200902; KR 20227011149 A 20200902; MX 2022002542 A 20200902; TW 109130197 A 20200903; US 202017636935 A 20200902